Electrification of the high-speed railway line between Belgrade and Budapest.

Services include the structural analysis of OCS masts and portals within the section from Batajnica (km 19+243) to Stara Pazova (km 34+944) on the high-speed railway line between Belgrade and Budapest. The technical approach to structural analysis has been coordinated and approved by CRDC as the design consultant and CIP as the check engineer.

The comparative analysis is generally divided into two parts – poles and portals – and includes approx. 80 portals and 1,000 poles. The primary objective of the investigation is to verify the constructed design and provide recommendations for necessary modifications.

Within this section, portals are present at the following stations:

• Batajnica – Nova Pazova
• Nova Pazova
• Stara Pazova

The portals vary based on the soil conditions, the OCL span lengths, the number and positioning of droppers, the number of cantilevers, the number of additional wires (bypass feeder and return conductor), and the deviation forces caused by OCL curvature and the “zig-zag” arrangement with varying eccentricity values. Additionally, special structures such as midpoint and anchor structures must be considered.